Particles Walk Through Walls While Physicists Watch

Particles Walk Through Walls While Physicists Watch | Quantum Tunneling | LiveScience: "The process is called quantum tunneling, and occurs when a particle passes through a barrier that it seemingly shouldn't be able to. In this case, scientists measured electrons escaping from atoms without having the necessary energy to do so. In the normal world around us, this would be like a child jumping into the air, and somehow clearing a whole house."